tree b476db568803208d16c52d23ce90022b9863c743
parent 6fe407f2d18a4f94216263f91cb7d1f08fa5887c
author Christoffer Dall <christoffer.dall@linaro.org> 1474995215 +0200
committer Christoffer Dall <christoffer.dall@linaro.org> 1474995455 +0200

KVM: arm/arm64: vgic: Don't flush/sync without a working vgic

If the vgic hasn't been created and initialized, we shouldn't attempt to
look at its data structures or flush/sync anything to the GIC hardware.

This fixes an issue reported by Alexander Graf when using a userspace
irqchip.

Fixes: 0919e84c0fc1 ("KVM: arm/arm64: vgic-new: Add IRQ sync/flush framework")
Cc: stable@vger.kernel.org
Reported-by: Alexander Graf <agraf@suse.de>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>